(form "00194" (size 73 13)
  (heading "DEFINE LIGHTS BY VECTORS AND COLOURS")
  (label (position  2  3) (text "Light"))
  (label (position  8  3) (text "Y"))
  (label (position 18  3) (text "X"))
  (label (position 28  3) (text "Z"))
  (label (position 38  3) (text "Colour"))
  (label (position  3  4) (text "1"))
  (label (position  3  5) (text "2"))
  (label (position  3  6) (text "3"))
  (label (position  3  8) (text "Lighting Interpolation"))
  (label (position  3  9) (text "(N)one or (G)ouraud or (P)hong"))
  (label (position  3 10) (text "This defines how colours are interpolated across DTM faces"))
  (label (position  3 11) (text "Edge Lighting"))
  (field "y1" (position  8  4) (display_length  8) (input allowed)
    (translate upper) (format real_8) (null disallowed) (max_length 16)
    (decimals 3))
  (field "x1" (position 18  4) (display_length  8) (input allowed)
    (translate upper) (format real_8) (null disallowed) (max_length 16)
    (decimals 3))
  (field "z1" (position 28  4) (display_length  8) (input allowed)
    (translate upper) (format real_8) (null disallowed) (max_length 16)
    (decimals 3))
  (field "light_colour1" (position 38  4) (display_length 32) (input allowed)
    (format colour)
    (translate lower) (null allowed) (max_length 32))
  (field "y2" (position  8  5) (display_length  8) (input allowed)
    (translate upper) (format real_8) (null disallowed) (max_length 16)
    (decimals 3))
  (field "x2" (position 18  5) (display_length  8) (input allowed)
    (translate upper) (format real_8) (null disallowed) (max_length 16)
    (decimals 3))
  (field "z2" (position 28  5) (display_length  8) (input allowed)
    (translate upper) (format real_8) (null disallowed) (max_length 16)
    (decimals 3))
  (field "light_colour2" (position 38  5) (display_length 32) (input allowed)
    (format colour)
    (translate lower) (null allowed) (max_length 32))
  (field "y3" (position  8  6) (display_length  8) (input allowed)
    (translate upper) (format real_8) (null disallowed) (max_length 16)
    (decimals 3))
  (field "x3" (position 18  6) (display_length  8) (input allowed)
    (translate upper) (format real_8) (null disallowed) (max_length 16)
    (decimals 3))
  (field "z3" (position 28  6) (display_length  8) (input allowed)
    (translate upper) (format real_8) (null disallowed) (max_length 16)
    (decimals 3))
  (field "light_colour3" (position 38  6) (display_length 32) (input allowed)
    (format colour)
    (translate lower) (null allowed) (max_length 32))
  (field "method" (position 25  8) (display_length  1) (input allowed)
    (value_in "N" "G" "P")
    (translate upper) (null allowed) (max_length 1))
  (field "edges" (position 25  11) (display_length  1) (input allowed)
    (value_in "Y" "N")
    (translate upper) (null disallowed) (max_length 1))
  (default_buttons)
)